Beating-engine.



Patented Apr. I

E. A. JONES.

BEATING ENGINE.'

(Applicaion med July 9, 1901.1

(No Model.)

WITNESSES:

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Y Uivirnn Sira'rns annum-Ormea EDVARD A. JONES, OF PITTSFIELD,MASSACHUSETTS.

BEATENGEIENGNE.

SPECIFICATION forming part of Letters Patent No. 696,822, dated April 1,1902. Application iiled J'uly 9, 1901. Serial No. 67.587. (No model.)

To @ZZ whom, t may concern:

Be it known that I, EDWARD A. JONES, a citizen of the United States, anda resident of Pittsiield,in the county of Berkshire and State ofMassachusetts, have invented a new and Improved Beating-Engine, of whichthe following is a full, clear, and exact description.

The invention relates to paper-makin g machinery; and its object is toprovide certain new and useful improvements in beating-engines forinsuring a proper circulation of the pulp or stock when the vat is beingemptied and to assist the pulp orstocl; to the discharge-pipe withoutthe use of manually-actuated rakes now generally employed for pushingthe stock to the discharge-pipe.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure lis a plan view of the improvement. Fig. 2 is a side elevation ofthe same, and Fig. 3 is an enlarged sectional side elevation of the sameon the line 3 3 in Fig. l.

In a vat A, of usual construction, is mounted to rotateabeating-drum,(n0t sl1own,) and at the rear end of said beating-drum isarranged abackfall B, extending from one side of the vat to amid-feather O. The improvement is applied to the vat A and maybe locatedat any point along the bottom of the vat or on the backfall, and itconsists of a device for sending a stream or jet of fluidsuch as water,for instance-into the pulp or vstool; in the direction in which the pulpor stock is flowing to insure a proper circulation of the pulp or stock,especially when the latter is low--that is, when one -half or twothirdsof the stock has been discharged from the vat by way of thedischarge-pipe located in the bottom of the vat at the lower endthereof. The device referred to is shown located under the rear wall ofthe backfall B, and it consists, essentially, of a pressurechamber D,connected at the side or bottom of the vat by a pipe E with a suitablesupply of water or other fluid. The chamber D is formed withajet-openingD' for discharging water under pressure into or under thepulp or stock at the bottom of the vat and in the direction in which thepulp or 'stock is howing owing to the action of the beating-drum.

The area of the jet-opening D is somewhat less than the area of thesupply-pipe E, so that water under considerable pressure passes throughthe jet-opening to produce the desired effect on the pulp or stock-thatis, insures a proper circulation thereof and throws the pulp around tothe discharge-pipe.

I do not limit myself to the particular con'- struction of the jetdevice described nor the particular location thereof under the backfall,as the same may be varied without deviating from the spirit of myinvention.

I-Iaving thus fully described my invention, I claim as new7 and desireto secure by Letters Patent- '1.v A beating-engine having a device in avat for forcing a stream of water into or nnder the pulp in thedirection in which the pulp is flowing, said device having adischargeslot extending from one side of the vat to the mid-featherthereof, as set forth.

2. A beating-engine having a device in a vat for forcing a stream ofwater into or under the pulp in the direction in which the pulp isflowing, said device comprising a pressurechamber extending from oneside of the vat to the mid-feather at the bottom of the vat, saidpressurechamber having a discharge-opening and a connection with thefluid-pressure supply, as set forth.

3. A beating-engine having a device in a vat for forcing a stream ofwater into or under the pulp in the direction in which the pulp isflowing, said device comprising a pressurechamber arranged under therear wall of the backfall and extending from one side of the vat to themid-feather, said pressure-chamber havinga discharge-opening and aconnection with a fluid-pressure supply, as set forth.

In testimony whereof I have signed my name to this specication in thepresence of two subscribing Witnesses.

EDWARD A. JONES.

. Witnesses:

ELLA E. SEGOB, W. E. BARDWELL.

